poet with a "barbaric yawp" (7)
![Ross](/clue/static/ross-mug.min.png)
I believe the answer is:
whitman
(Other definitions for whitman that I've seen before include "Walt . . . . . . . great American poet" , "American writer" , "Walt --, US poet" , "Slim < country and western singer" , "Walt . . . . . . ., American poet of 'Leaves of Grass'" .)